A project has just undergone performance testing Which of the following results meets the air...

For WELL Certification air quality thresholds, particulate matter (PM2.5) levels are a common concern due to their impact on respiratory and cardiovascular health. A result showing PM2.5 equal to 10 µg/m³ would likely meet the stringent air quality requirements set by WELL standards for indoor environments. This level indicates good air quality management practices, such as effective air filtration and ventilation systems, contributing to a healthy indoor environment.